//
//  CZNetworkTools.swift
//  Weibo30
//
//  Created by apple on 16/8/9.
//  Copyright © 2016年 itcast. All rights reserved.
//

import UIKit
import AFNetworking
//  网络请求的枚举类型
enum RequestType: Int {
    //  get 请求方式
    case GET = 0
    //  post 请求方式
    case POST = 1
}

//  网络请求专用类
class CZNetworkTools: AFHTTPSessionManager {

    //  闭包的别名
    typealias CallBackType = (response: AnyObject?, error: NSError?)->()
    
    //  单例全局访问点
    static let sharedTools: CZNetworkTools = {
        let tools = CZNetworkTools()
        //  添加响应可接受的类型
        tools.responseSerializer.acceptableContentTypes?.insert("text/plain")
        return tools

    }()
    
    
    //  封装上传图片接口
    func requestUpload(url: String, params: AnyObject?, imageData: NSData, name: String, callBack: CallBackType) {
    
        POST(url, parameters: params, constructingBodyWithBlock: { (formData) -> Void in
            //  data 图片对应的二进制数据
            //  name 服务端需要参数
            //  fileName 图片对应名字,一般服务不会使用,因为服务端会直接根据你上传的图片随机产生一个唯一的图片名字
            //  mimeType 资源类型
            //  不确定参数类型 可以这个 octet-stream 类型, 二进制流
            formData.appendPartWithFileData(imageData, name: name, fileName: "test", mimeType: "application/octet-stream")
            

            
            }, progress: nil, success: { (_, reponse) -> Void in
                callBack(response: reponse, error: nil)
            }) { (_, error) -> Void in
                callBack(response: nil, error: error)
        }
        
        
    }
    
    
    
    //  封装get/post请求
    func request(requestType: RequestType, url: String, params: AnyObject?, callBack: CallBackType) {
        if requestType == .GET {
          
            GET(url, parameters: params, progress: nil, success: { (_, response) -> Void in
            
                callBack(response: response, error: nil)
            
            
            }, failure: { (_, error) -> Void in
                callBack(response: nil, error: error)
            })
        } else {
            
          POST(url, parameters: params, progress: nil, success: { (_, response) -> Void in
                callBack(response: response, error: nil)
            }, failure: { (_, error) -> Void in
                callBack(response: nil, error: error)
          })
        }
      
        
    }
    
}

//  发微博相关接口
extension CZNetworkTools {
    //  上传带有图片的微博接口
    //  status: 微博数据参数
    func upload(access_token: String, status: String, image: UIImage, callBack: CallBackType) {
        //  准备url
        let url = "https://upload.api.weibo.com/2/statuses/upload.json"
        //  准备参数
        let params = [
            "access_token": access_token,
            "status": status
        ]
        
        
//        let imageData = UIImagePNGRepresentation(image)
        //  把图片转成二进制数据
        let imageData = UIImageJPEGRepresentation(image, 0.5)!
        
        requestUpload(url, params: params, imageData: imageData, name: "pic", callBack: callBack)
        
        
        
//        POST(url, parameters: params, constructingBodyWithBlock: { (formData) -> Void in
//            
//            //  data 图片对应的二进制数据
//            //  name 服务端需要参数
//            //  fileName 图片对应名字,一般服务不会使用,因为服务端会直接根据你上传的图片随机产生一个唯一的图片名字
//            //  mimeType 资源类型
//            formData.appendPartWithFileData(imageData1, name: "pic", fileName: "test", mimeType: "image/jpeg")
//            
//            
//            }, progress: nil, success: { (_, response) -> Void in
//                
//                callBack(response: response, error: nil)
//                
//            }) { (_, error) -> Void in
//                
//                callBack(response: nil, error: error)
//        }
        
    
    }
    
    
    
    //  发送文字微博
    func update(access_token: String, status: String, callBack: CallBackType) {
        //  准备url
        let url = "https://api.weibo.com/2/statuses/update.json"
        //  准备参数
        let params = [
            "access_token": access_token,
            "status": status
        ]
        request(.POST, url: url, params: params, callBack: callBack)
    }

}


//  首页相关接口
extension CZNetworkTools {
    
    
    //  获取当前登录用户及其所关注（授权）用户的最新微博
    //  给参数设置默认值, 如果参数提供默认值,外界调用函数的时候不传入值,那么值是默认值
    func requestStatuses(accessToken: String, maxId: Int64 = 0, sinceId: Int64 = 0, callBack: CallBackType) {
        //  准备url
        let url = "https://api.weibo.com/2/statuses/friends_timeline.json"
        //let url = "https://api.weibo.com/2/statuses/home_timeline.json"
        //  准备参数
        let params = [
            "access_token": accessToken,
            "max_id": "\(maxId)",
            "since_id": "\(sinceId)"
        ]
        
        let path = url + "?access_token=" + accessToken
        print(path)
        
        request(.GET, url: url, params: params, callBack: callBack)
        
        
    }

}


//  OAuth登录相关接口
extension CZNetworkTools {
    //  通过code获取accesstoken
    func reqeustAccessTokenWithCode(code: String, callBack: CallBackType) {
        //  准备url
        let url = "https://api.weibo.com/oauth2/access_token"
        //  准备参数
        let params = [
            "client_id": WeiboAppKey,
            "client_secret": WeiboAppSecret,
            "grant_type": "authorization_code",
            "code": code,
            "redirect_uri": WeiboRedirect_Uri
        ]
        
        request(.POST, url: url, params: params, callBack: callBack)
        
        
    }
    //  通过accesstoken和uid获取用户信息
    func requestUserInfo(userAccount: CZUserAccount, callBack: CallBackType) {
        //  准备url
        let url = "https://api.weibo.com/2/users/show.json"
        //  准备参数
        let params = [
            "access_token": userAccount.access_token!,
            "uid": "\(userAccount.uid)"
        ]
        
        //  执行请求
        request(.GET, url: url, params: params, callBack: callBack)
    }

}












